Issued Patents All Time
Showing 25 most recent of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767609 | Low-dislocation bulk GaN crystal and method of fabricating same | — | 2023-09-26 |
| 11742800 | Terahertz Gunn oscillator using gallium nitride | — | 2023-08-29 |
| 10355115 | Electronic device using group III nitride semiconductor and its fabrication method | Daisuke Ueda | 2019-07-16 |
| 10354863 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Edward Letts, Daryl Key | 2019-07-16 |
| 10316431 | Method of growing group III nitride crystals | Edward Letts, Sierra Hoff | 2019-06-11 |
| 10287709 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Edward Letts, Daryl Key | 2019-05-14 |
| 10242868 | Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication method | Edward Letts, Daryl Key | 2019-03-26 |
| 10161059 | Group III nitride bulk crystals and their fabrication method | Edward Letts | 2018-12-25 |
| 10156530 | Group III nitride wafers and fabrication method and testing method | — | 2018-12-18 |
| 10141435 | Electronic device using group III nitride semiconductor and its fabrication method | Daisuke Ueda | 2018-11-27 |
| 10134884 | Electronic device using group III nitride semiconductor and its fabrication method | Daisuke Ueda | 2018-11-20 |
| 10134883 | Electronic device using group III nitride semiconductor and its fabrication method | Daisuke Ueda | 2018-11-20 |
| 10087548 | High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystal | Edward Letts, Masanori Ikari | 2018-10-02 |
| 10024809 | Group III nitride wafers and fabrication method and testing method | — | 2018-07-17 |
| 9985102 | Methods for producing improved crystallinity group III-nitride crystals from initial group III-nitride seed by ammonothermal growth | Edward Letts, Masanori Ikari | 2018-05-29 |
| 9909230 | Seed selection and growth methods for reduced-crack group III nitride bulk crystals | Edward Letts, Daryl Key | 2018-03-06 |
| 9885121 | High pressure reactor and method of growing group III nitride crystals in supercritical ammonia | — | 2018-02-06 |
| 9834863 | Group III nitride bulk crystals and fabrication method | Edward Letts | 2017-12-05 |
| 9822465 | Method of fabricating group III nitride with gradually degraded crystal structure | — | 2017-11-21 |
| 9803293 | Method for producing group III-nitride wafers and group III-nitride wafers | Edward Letts, Masanori Ikari | 2017-10-31 |
| 9790616 | Method of fabricating bulk group III nitride crystals in supercritical ammonia | — | 2017-10-17 |
| 9790617 | Group III nitride bulk crystals and their fabrication method | Edward Letts | 2017-10-17 |
| 9783910 | High pressure reactor and method of growing group III nitride crystals in supercritical ammonia | — | 2017-10-10 |
| 9754782 | Group III nitride substrates and their fabrication method | — | 2017-09-05 |
| 9685327 | Electronic device using group III nitride semiconductor and its fabrication method and an epitaxial multi-layer wafer for making it | — | 2017-06-20 |